Barr's summary seems real specific. No one conspired with the Russians.
"But as noted above, the Special Counsel did not find that the Trump campaign, or anyone associated with it, conspired or coordinated with the Russian government in these efforts, despite multiple offers from Russian-affiliated individuals to assist the Trump campaign."
How can you argue with this assessment?
https://www.nytimes.com/interactive/2019/03/24/us/politics/barr-letter-mueller-report.html
I doubt the longer winded version from the Mueller team will prove the assessment in error.
Soon I think, we will be into the investigation of how the Obama administration began the investigation of a Presidential Candidate during the campaign, for the first time in our history. How they abused the fisa process to aid them. The inappropriate outing of Trump people. In other words, the real crimes will soon be under investigation.